A stable starch-based film-forming composition
A composition and technology of starch film, applied in the field of starch-based film-forming compositions, can solve the problems of poor moisture retention, easy aging, etc., and achieve the effects of lowering temperature, improving anti-aging properties, and good mechanical processing performance
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Embodiment 1
[0033] Amylose corn starch 45kg
[0034] Amylopectin tapioca starch 40kg
[0035] Hydroxypropyl starch 10kg
[0036] Booster 5kg, including:
[0037] Glycerin 0.5kg;
[0038] Carboxymethyl cellulose 1kg;
[0039] Micropowder silica gel 2kg;
[0040] Microcrystalline cellulose 1.25kg;
[0041] Sodium alginate 0.75kg;
[0042] The above components are ground and mixed in a grinder.
[0043] Mix the prepared composition with water to form a glue, make the viscosity between 500-750mPa·s at 25°C, preheat to 55°C, and preheat the automatic film coating machine at the same time, and coat the glue on the plate Above, the thickness is controlled at 0.5 mm, and the starch film is obtained by drying.
Embodiment 2
[0045]Amylose pea starch 70kg
[0046] Branched glutinous rice starch 20kg
[0047] Sulfate starch 5kg
[0048] Booster 5kg, including:
[0049] Glycerin 1.5kg;
[0050] Carboxymethyl cellulose 0.3kg;
[0051] Micropowder silica gel 2.5kg;
[0052] Microcrystalline cellulose 0.5kg;
[0053] Sodium alginate 0.2kg;
[0054] The above components are ground and mixed in a grinder.
[0055] Send the obtained mixture into a twin-screw extruder, extrude it into a film of 0.5mm in the temperature range of 50-80°C, and air-dry it.
Embodiment 3
[0057] Amylose pea starch 62kg
[0058] Branched Glutinous Rice Starch 30kg
[0059] Oxidized starch 1.5kg
[0060] Starch nanocrystal 1.5kg
[0061] Booster 5kg, including:
[0062] Sorbitol 0.75kg;
[0063] Carboxymethyl cellulose 1.35kg;
[0064] Micropowder silica gel 1.4kg;
[0065] Microcrystalline cellulose 1.25kg;
[0066] Sodium alginate 0.25kg;
[0067] Send the obtained mixture into a twin-screw extruder, extrude it into a film of 0.5mm in the temperature range of 50-80°C, and air-dry it.
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